Bobbin-winding machine



1,625 232 Aprll 19,1927. L. E. TOPHAM f BoBIN WINDING MACHINE OriginalFiled April so, 191s -4 sheets-sheet -1 ,62 /Ja l a4 f 1,625,232 Apnl,19.1927' E. TOPHAM BOBBIN WINDING MACHINE Original Filed April 50, 19184 Sheets-Sheet 2 Y ZM A il 1927.

Pr 19 L. E. TOPI-IAM BOBBIN WINDING MACHINE Orlglnal Filed April 30,1918 4 Sheets-Sheet 3 Z-T'D Ver-Dt) D1' April# 19, 1927.

' L. E. TOPHAM BOBBTN WINDING MACHINE 4 Slxeets-Sheet 4 Original FiledApril 30, 1918 m fr? WET- 7555 Patente-d Apr. 19, 1927.

NETE@ STATES PATE LAURENCE E. TOPI-LAM, 0E SVVAMSCOTT, MASSACHUSETTS,ASSGNOR TO 'NTTED SHOE MACHINERY CORPORATION, OF PATERSON, NEW' JERSEY,A CORPORATION 0F NEW JERSEY.

BOBBIN-WINDING- MACHINE.

Application filed April 30, 1918, Serial No. 231,611. Renewed November20, 1925.

This invention relates to winding machines, and more particularly towinding machines for winding sewing machine bobbins.

rthe primary object of the invention is to produce a bobbin windingmachine upon which filled bobbins having a portion of the thread woundon the bobbin in one direction and the remainder of the thread wound onthe bobbin in the reverse direction may be produced in a rapid,efficient and reliable manner.

lilith this object in view, the machine is provided with drivingconnections for driving the winding shaft in reverse directions, and afeature of the invention contemplates the provision of automaticallyacting means `for actuating and controlling the driving connections todrive the winding shaft in one direction during tne winding of the firstpart of the bobbin and to drive the winding shaft in the reversedirection during the winding of the remainder of the bobbin.

In the preferred form of the invention, the direction of rotation of thewinding shaft is reversed when the winding sha-ft has er-ccuted apredetermined and definite number of rotationsv at the beginning of thewinding operation, or when a predetermined length of thread has beenwound on the bobbin. 1n the present embodiment of the invention theshifting of the driving connecti ons to reverse the direction ofrotation of the winding shaft is controlled by a mechanism which isdriven in definite relation to the winding shaft during the rotation ofthe winding shaft in the first direction at the. beginning of thewinding operation. T his mechanism registers the rotation of thewindingshaft in the first direction and times the action of themechanism for shifting the driving connections or determines the pointin the rotation of the shaft at which the direction of rotation of theshaft is reversed. `When the winding shaft has described a predeterminednumber of rotations in the first direction, or when a predeterminednumber of coils or turns of thread have been wound on the bobbin, thismechanism causes the automatic shifting'of the driving connections toreverse the direction of rotation of the winding shaft.

Other objects of the invention are to improve the construction and modeof operation of bobbin winding machines.l and with this object in viewthe invention comprises certain other novel and improved featureshereinafter described and particularly pointed out in the claims.

The features of the invention will be readily understood from theaccompanying drawings illustrating the invention in its preferred form,and the following detailed description of the constructions thereinshown.

In the drawings, Figure 1 is a plan view of a bobbin winding machineembodying the invention; Fig. 2 is a view in front elevation, partly insection, of the machine; Fig. 3 is a view, partly in plan and partly inhorizontal section, of a portion of the machine, illustrating` certainof the parts in different positions from the positions in which they areshown in Fig. 1; et is a plan view, partly in section, of the machine,illustrating certain of the parts in still different positions from thepositions in which they are shown in Figs. 1 and 3; Fig. 5 is a view, inside elevation, partly in section, of the machine; Fig. 6 is a detailsectional View, I

taken substantially on the line 6 6 of F ig. Fig. 7 is a detail view inside elevation illustrating particularly certain parts of the mechanismfor clamping a bobbin on the bobbin winding shaft; Fig. 8 is aperspective view illustrating certain parts of the mechanismfor'clamping a bobbin on the bobbin winding shaft; Fig. 9 is a viewsimilar to F 8, illustrating the parts in different relative positions;Fig. 10 is a view similar to Figs. 8 and 9, illustrating the parts instill different relative positions: Fig. 11 is a transverse sectionalview and Fig. 12 is a view in side elevation, showing a partially woundbobbin at an early stage in the winding operation; Fig. 13 is atransverse sectional view and Fig. 14 is a view in side elevation,showing a partially wound bobbin at a later stage in the winding'operation; Fig. 15 is a transverse sectional view with a portion of thethread broken away; and Fig. 16 is a view in side elevation of acompletely wound bobbin.

The machine illustrated in the drawings comprises a rotatable andlongitudinally movable bobbin-carrying winding shaft 2 mounted insuitable bearings and having a reduced left-hand end port-ion indicatedat 4.- upon which `a bobbin may be secured as shown in Figs. 1, 2 and 4,the bobbin being indicated at ll in the-:e liguree. lfhe elia'lt ismounted to slide longitudinally in a bearing in a Sleeve (l 'journaledin a bearing in the upright S on the Ytrame and mounted to rotate andslide longitudinally in a bearine; in a bushingl llt) clamped in theupright 12 on the frame. rlhe sleeve t' is Secured to rotate with thewindin shaft by means ot a` key ll mounted on the shalt and engaging ina longitudinal groove in the sleeve. Journaled eide by eide upon thewinding' shaft between the bearing-e tor the shaft are two drivinglpulleys lt and i8, which are driven in opposite directions as indicatedb v the arrowe` in Figi'. l b v means ot drivingl belts 2O and 22.Clutch deviccsi` are provided tor connectingv the pulley lll and thepulley 18 alternatively with the winding shaft. These clutch devicescomprise a disk Bfl secured to the windingehatt, and a clutch pinsecured in the disk with its endev projecting laterally trom the disk, aclutch pin 28 mounted in the driving' pulley lll and arranged to engagethe lett-hand end oit the clutch pin 2G. and a clutch pin 30 mounted inthe driving?T pulle)T 18 and arranged to engage the right-hand end ofthe clutch pin 2G.

lli'hen the machine iS idley the winding?r xhat't in held in thelong-itiulinal ponition Shown in Fig. 2 with the clutch pin 2li locatedin central position between the clutch pinel and ill) no that itsrespective ende clear said clutch pins, the driving pulleys lli and 1Sthen rotating` idlyv o-n the shatt. l`o connect the winding' ahatt withthe dri ving" pulley 1li, the shaft is shifted longitlulinally to thelett to cariwv the lett-hand end ot the clutch pin into the path ot' theclutch pin :28, an lShown in Fit". 3, and in a corresponding manner toconnect the windinil Sha'lt with the driving pelle)v ttl the Shaftehi'l'ted longitudinally to the right to carry the right-lourd end olthe clutch pin 2li into the path ot the clutch pin Btl, as shown in Fig;-,l-. Upon starting the machine the winding4 nhatt ia shitted to thelett to clutch the saine to the driving' pullev lll. The Shaft is drivenby thc driving; pulley 1G in the direction indicated bv the arrow inFie'. 2l until a predetermined number oi turns or coila of thread havebeen wound on the bobbin and the tshatt ia then automatically :shiftedto the right to unclutch the shalt trom the drivingl pulley1 'lt and toclutch the Same to the driving pellet7 1S. The shajtt. in then driven bvthe drivingpalle)v iS in the opposite direction or in the directionindicated by the arrow in Fig. el until the winding oit a bohbin incompleted. Upon the completion ol" the. winding;r of a hobbin the shat'tis shifted to the left to ite idle position to unelutch the Shaft fromthe driving pulley t8 and cauto the Shaft to come to reet.

The longitudinal position of the winding what't ia controlled by a hellcrank shittingY lever 3:5 pivoted at lll on the 'trame and having,V atork formed at the end ot its vertically eli;tending` arni, the members`o-l" which embrace a sleeve lo secured on the windingil shaft by a nut3S threaded on the end o li the allait. aaid members engaging betweenilario-ea` ttl l-ormed on the aleeve. To the end et' the horizontallyextending` arm ot the bell crank shittingv lever S52 iivotall)7connected the upper end ot' a rod l2 mounted in a sleeve lila It coiledepi-iin;- lt Surrounds the. rod within the sleeve, and is interposedbetween collarel -ttl and o() mounted on thc rod. The collar #itl isarranged to engage an abutment o2 lin'mcd on the rod l2 and theinunrdl)1 projectiing; end wall ot the Sleeve7 while the collar all inarranged to engage a collar ."i-lY mounted on the lower end oft the rodand an abutment Btl termed on the inw terior ot the sleeve. lilith thisconntrnction relative longitudinal movement of the :sleeve and rod ineither direction will compress@` the coiled Spring lo. rlhe lower end otthe Sleeve in connected to the upper end ol a treadle rod 5S, the lowerend oit' which is piv` otally connected with a tread le shownconventionally in Fig. 5, and indicated by reterence numeral llt). Thetreadle (it) is pivot ed at (l2 and i= cted upon by a coiled Spring;(il, the strength ot which is considei-ablyY greater than that o'l thecoiled spring` itl no that the tormer spring will litt the treadle andtreadle rod against the action oit the latter spring. The upwardmovement ot the treadle and treadle rod is limited by ai stop pin (itlarranged to engage the treadle. lVith thinl construction the elevationot the treadle rod upon the release of the treadlo tends throingh thespring -lt to swing the bell crank ehil'tin.;Y lever 32 in a directionto ehi'll; the winding Shaft to the lett to clutch the pulleyY lli tothe aha'l't. and the depreaaion ol the treadle rod tenda4 through Saideprint; to swine; the aliittingg,l lever 3Q in a direction to shitty thewinding: ahat't to the right to clutch the pulley 18 to the shalt.

'lhe moven'ient ol the shifting' lever 32 is controlled hv a latch lever(S pivoted on a` stud T0 and haring' a laterally extendiiuil arin uponwhich ia toi-ined a` projection T2 arranged to engage a projection Til;lornied on a plate :Lecured to one ot the memliers ot the forli on thevertically extending arm ol the shitting' lever. The latchY lever isacted upon by a coiled eprintr 72 which tends to Swing the lever in adirection to cariv the laterallyv erftein'liinf arm thereof 'torwaitllvThe latch lever in also formed with a forwardly extending; armterminating in a handle 76.

The parte are `no cm'iatructed and arranejc-d, that with the projectionT2 on the atch lever located at the lett ot projection Tl on theshitting' lever and in contact therewith, as shown in Fig. l,thelongitudiincassa nal position of the Windinof shaft as determined by theshifting lever is such that the shaft is unclutclied from both drivingpulleys, and with the projection 72 located a the right of theprojection 74 and in contact tl'iereivith, as shown in Fig. 3, thelongitudinal position of the Winding shaft such that the shaft isclutched to the pulley 16. Figs. 1 and 2 show the positions of the partswhen the machine is idle, the projection 72 on the latch lever being`located to the left of the projection 74 on the shiftino` lever and thetreadle being released. lhe. shifting,` lever is held in position withthe projection 74 in contact with 'the projection so that the shaft isunclutched from both pulleys by the. action of the tref-,die spring, ($4and the intermediate spring` 48, The sleeve 44 is held in elevatedposition by the treadle spring, thereby placing the spring 4G underconsiderable compression (see Fig. 2).

lVith the parts in the positions shoivn in Figs. 1 and 2, after a bobbinhas been secured in place on the end of the Winding shaft, the operatorstarts the machine by grasping the handle of the latch lever andswinging the same to the right. The swinging movement of the latch leverthus produced disengages the projection 72 on the latch lever from theprojection 74 on the shifting lever, allowing` the latter lever to beactuated by the coiled spring 46 to shift the Winding shaftlongitudinally to the left to clutch the shaft to the pulley 16. Uponthe release of the operating handle on the latch lever, said lever isswung back to its original position by the action of the coiled spring76, thereby locating the projection 72 on the lever to the right of theproj ection 74 on the shifting' lever, as shown in Fig'. 3. After thisoccurs the operator depresses the treadle. During the depression of thetreadle the shifting` lever is held from swinging movement by theengagement of the projection 72 With the projection 74, and the coiledspring V46 is coinpressed by the downward movement of the sleeve 44.rlhe treadle is held doivn by the operator until the winding` of abobhiu is completed. Vlien a predetermined number of coils or turns havebeen Wound on the bobbin, the latch lever is automaticilly actuated todisengage the projection 72 from the projection 74. The coiled spring`46 thenactuates the shifting;- lever to shift the Winding shaftlongitudinally to the right to unclutch the shaft from the drivinfrpulley 16 and to clutch the same to the driving pulley 18. The rotationof the Winding shaft is thusl automatically re.- versed and the threadis thereafter wound upon the bobbin in the reverse direction. TheWinding shaft is held in position longitudinally with the driving pulley18 clutched thereto by the depression of the treadle until the operatorreleases the treadle upon the completion of the Winding,r of the bobbin.After the Winding shaft is shifted to the right the latch lever is againsivn .0' back to its original position by the Ll spring 76, therebylocating the pro- V, ..on 72 in position at the left of the projection74. Gbviously, in shifting` the winding` shaft to the right far enoughto clutch the shaft to the driving` pulley 18,the shift ing' lever isactuated to carry the projection 74 to the right somewhat beyond theprojection 72, as shown in Fig. 4. Upon of the treadle rod under theaction of the ireadle spring (S4 at. the completion of the winding of abobbin, the shifting lever is actuated during the first part of theupward movement of the treadle to shift the i* Winding shaft to thevleft to unclutch the shaft from the driving pulley 18, the movement ofthe shifting lever beingstopped by the engagement of the projection 74With the projection 72. During the further upu'ard movement of thetreadle rod the sleeve 44 moves upwardly independently of the rod,thereby compressing` the coiled spring 46, as shown in Fig. 2. The partsare thus restored to their original idle positions.

The mechanism for automatically actuating the latch lev-er to disengagethe projection 72 from the projection 74 and thereby cause the shiftingof the winding shaft to reverse the direction of rotation thereof aftera predetermined number of turns have been Wound on the hobbin comprisesa longitudinally movable and rotatable Shaft 7 8 mounted at one end in abearing supported in the upright 8 and at the other end in a bearingsupported in an arm 8O on thenpright. The shaft 78 is driven from theWinding shaft 2 through a gear 82 secured to one end of the sleeve G anda gear 84 secured to a sleeve 86 journaled in a bearing in the upright8, the sleev-e 86 forming a bearing` for the left-hand end of the shaft78. During the rotation of the Winding` shaft, the gear 84 is driventhrough the sleeve G and gear 82 from the Winding shaft in a, directiondcpending on the direction of rotation of the Winding shaft and at aspeed depending on the ratio lof the sizes of the gears. These gears arepreferably proportioned so that the speed of rotation of the gea-r 84 isconsiderably less than that of the Winding shaft. The shaft 78 is drivenfrom the gear 84 in a definite relation to the Winding shaft during` therotation of the Winding shaft in the direction of the arrow, 4ig. 3, orduring the Winding of the predetermined length of thread on the bobbinlthrough a suitable clutch Which is inactive during the rotation of thewinding shaft in the direction of the the release ofthe treadle and theelevation i Gil arrow, Fig. fl, or during);l the whirling` ol theremainder ol the bobbin. The rotation ot the Winding; shalt in thedirection oit the arrow, lii il, drives the gear 8l `in the directionol' the arrows. Fins. 5 and t3, While the rotation ol the niniling;lshalt in the direction ot the arrow. lille'. el. obviouel'jv will drivelthe gear ttl in a direction reverse to that olf the arrows, Figs. 5 andt. The shalt To is driven `troni the gear SM1 through a doe; clutchctnnprising a clutch dog 8S pivoted at ttt) on the near and a sleeve 92inounted on the, shalt, To to rotate with the sha'lit. and llanuraanotch in its peripherjv which torina an abutment' ttl arranged to beengaged by; the projection 9o on the clntcl Vj. The clutch den' is actedupon by a coiled spring;- :ttr whiclrtends to maintain the projectiontitl on the clutch dog;l in the notch in the sleeve but allows theclutch dog to swingl inrtvvardly to disengag'c the projection Atroni thenotch. '.llhe sleeve Stil is connected with the shatt To by ineans ot apin lll() mounted in the shaft with its outer end engaging` in alongitinlinal groove in the sleeve. which connectsI the sleeve torrotation with the sha'tt and allows the shaft to inove longitudirnillj'through the sleeve. The projection 9G in the clutch donf and theabutnient 9-l1 in the sleeve are so constructed and arranged thatdur-nig the rotation ot the `rear St in the direction olf the arrows,Figs. 5 and (l. the gear is clutched to the sleeve hv the clutch dei;and drives the sleeve and shait 78, while `lurinn' the rotation ot' thegear in the revente direction the clutch dop; is inactive, allowinn the`rear to rotate independently oit the aleeif'e. 'lhe arrow on Fig. 3indicates the direction ot rotation ot the shalt TS when the sha lt iadriven troni the gear S4; through the clutch den' Sti. 'llhe sleeve isacted upon by a coiled spring; 102 interposed between the outer end otthey vsleeve and the hub ot a` disli lttl, secured to the sha'lit, whichn1ain tain@` the inner end ot the sleeve in 'lirictional engagement withthe gear St to cause the .oracle drive 'the sleeve and the sha'tt Ztlduring' the rotation ot the gear in a direction reverse to the arrows,Fig t3 and o. its shown clearljv in liig. 3, the nhtdiand end ot' theshalt 'itl torined with a series ol aeree.' threads indicated at ltlttand in threaded into a nut il'ornied in a sleeve 1.03 secnrei'l lj aclainp in the outer end ot the arni 8o. 'through the engz eurent ol theend ot the shalt Trl Vin the sleeve 10S, longitudinal inovenient will beiinjlnirted to the, sliailit by the rotation ot the shalt. 'lhe threadsupon the shaft. and sleeve are whatL are ordinarily linonn as lettdiandthreads, :fo that as the altari is driven in the direction ot the arrow,Fig. 213, bj' the rotation ot the gear Sl, the sha'lt Will he inovedlongitudinally to the left.

The shalt T8 by ite longitudinal inoveinent waaraan to the lett thusregistera the rotations et the winding;l slia'l't during' the tiret partoit the winding operation. The point in the Winding' operation at whichthe latch lever is aetnate'l to disengag'e the projection i2 troni theprojection Tel to cause the shitting;` ot the windingu shaflt to reversethe direction ot' rotation olI the shalt is timed by the longitudinalmovement olE the shaft 78 so that the direction of rotation ot' thewinding stia tt ia reversed alter the n'iiidingl sha'l't han executed apredetermined nuniber ot rotations at the beginning olf the winding`operation. 'ifo this end the dislc lttelcar ies an inclined projectionllt) which at a certain point in the longitudinal niovenurnt ot thesha'tt TS is adapted to engage a contact sind 11:2 n'iounted on arearwardly e.\'teiulinv arni on the latch lever. lllv the engagemento'l" the projection 11() with the conta 't stud Vl lil the latch leveris swung' in a direction to disenjajaire the projection 'T2 on the lever'troni the projection trlV on the, shitting lever 82. rThe longitudinalposition ol the shalt 78 at the start ot' the winding o1 a bobbln isdetermined by an abutment screw 11.1 threaded into the outer end of thesleeve .10S and arranged to engage the en'd of the shaft 78, as shovvnin Figi'. 3. Figs. 1 and t illustrate clearly the position ot the shalt7S at the start ot the winding ot a bobbin, Fig. 1 shoninl` thepositions oli the parts before the, latch lever has been actuated tostart the niachine. and lliir. -t showing the positions ol the parte`just alter the Winding' sha'lit has been shifted to clutch the sliatt tothe driving' pulley 1li. lt will be noted that. at` the start ol theiindingoperation ot tl e projection .110 on the disk 1011- is locatedFoule distance troni the contact stud 112 on the latch lever. lfponstai-ting;n the niachinc. as the windingY sl att, is clutched to thedrivinnpulley 16 and is driven in the direction indiated by the arrow inFigi'. il, by said pulley, throngih the driving' connections between thewinding` shaft and the shalt 78 the latter shalt i s driven atrelativeljv slow speed in the direction o'l'l the arron' in saidtligure. lhe rotary movement ot' the sha'tt Til in this dircction cruisesthe sha'tt to niove lonlig'itlnltnalljr to the lett. Alter the windingshalt has d eseribed a predetermined nuinber ot rotations7 or alter apredetermined number ot turns oft thread have been wound on the bobbin.the jiirojection 110 on the disk 10ft enfljagres the contact stud 112and actuatcs the latch lever to disengage the projection T2 on. thelever from the projection 74; on the shifting' lever 3Q. then thisoccurs. as above elated. the shitting" lever is actuated by the actionof the coiled spring #i6 to shift the Winding' shalt longitudinally toclutch the shaft to the drivingr pulley 18. As the gear t-l upon thereversal inthe direction ol rotin tion of the winding shaft is rotatedin' a till ita)

lite

lill) direction reverse to the arrows, Figs. 5 and 6, the sleeve 92 isrotated in the same direction through the frictional engagement of theinner end of the sleeve with the gear, the coiled spring 102 then beingunder comparatively heavy compresioinas shown in Fig. 4, so that theinner end of the sleeve is held with considerable pressure against thegear. By the rotary movement thus imparted to the sleeve 92 the shaft T3is rotated in the direction of the arrow, Fig. fl, and is movedlongitudinally to the right to its original position. The number ofrotations executed by the winding shaft before the latch lever isactuated by the engagement of the projection 110 with the contact stu'd112 to cause the reversal in the direction of rotation of the windingshaft, or the time in the rotation of the shaft during the first part ofthe. winding operation at which the direction of rotation of the shaftis reversed depends upon the position of the dislr 1011 at the start o-fthe winding operation, which is determined by the initial longitudinalposition of the shaft TS. The initial longitudinal position of the shaftmay be adjusted to regulate, as desired, the number of rotationsexecuted by the winding shaft before its direction of rotation isreversed by an adjustment of the abutment screw 115. Should the operatorfail to have depressed the treadle when the latch lever is actuated todisengage the project-ion 72 from its position at the right of theprojection 711 by the engagen. c t of the projection 110 with the stud112, the shifting lever 32 is then actuated by the movement of the latchlever to shift the winding shaft to the right into its idle position, asshown in Fig. 2. -To this end an abutment screw 113 is mounted on theforwardly extending arm of the latch lever, and one of the members ofthe forli on the shifting lever is formed with a lateral extension,indicated at 114-A in the drawings, adapted to g the abutment screw 113.he winding shaft may then be shifted. to the right from its idleposition to clutch the saine to the pulley 1S by the depression of thetreadle.

Vl machine is provided with .improved 1.11 devices for clamping a bobbinupon the bobliin winding shaft which will ena-ble the bobbin quickly andeasily t0 be clan'iped `upon the winding :shaft upon starting themachine, and to be unclamped from the winding shaft when the winding ofthe bobbin has been completed. rllhe clamping devices for the bobbin-comprise a flange 116 formed on the winding shaft and arranged 'toengage one side of the bobbin, and a chiniping ineniiber 118 arranged toengage the other side of the bobbin. The clamping member 118 is mountedupon the inner end of a rod 120 having a cylindrical enlargement or head122 engaging in a cylindrical recess in the clamping member. The rodsha-ft..

120 is mounted for longitudinal and rotary movement in a sleeve 1.24 andis formed at its outer end with a series of right-hand screw threadsengaging corresponding screw threads formed in the sleeve. The sleeve121- is mounted for longitudinal and rotary movement in an arm 126pivoted at 128 on the frame, and carries a milled hand wheel 130. Asshown clearly in Figs. 3, 8, 9 and 1G, the end of the winding shaft isslabbed off upon its opposite sides, as indicated at 132, and is cutaway at 134-, thereby forming lateral projections 136. The cylindricalhead 122 on the end of the rod 120 is provided with a longitudinal slot13S to rcceive the end of the winding shaft, with recesses 140 toreceive the lateral projections 136 on the shaft, and with projections142 to engage the lateral projections on the shaft. With the end of thewinding shaft and the head of the rod 120 in the relative positionsshown in Fig. 8, by moving the rod longitudinally toward the shaft, theend of the shaft is engaged in the .slot 138, as shown in Fig. 9. liliththe parts in the positions shown in the latter figure, upon turning thewinding shaft in the direction of the arrow, the lateral projections 136on the shaft are engaged in the recesses 14:0, or are located behind theprojections 1112 on the head of the rod. These relative movements areimparted to the rod and winding shaft in clamping a bobbin on theshaft.k

Before a bobbin is placed on the end of the winding shaft the sleeve124, rod 120 and clamping devices 113 are swung rearwardly into thepositions shown in full lines in Fig. 7, out of line with the windingshaft so that the end of the winding shaft 'is unobstructed. After abobbin has been placed on the end of the winding shaft, the sleeve, rodand clamping device are swung back into axial alignment with the'winding shaft. as 4shown in dotted lines in l? 7; The sleeve 12e isthen fo 'ced longitinlinally to the right by the operator until the head122 of the rod 120 engages the end of the winding shaft, and is thenrotated until the end of the winding sha-ft engages in the slot 1616, asshown in Fig. 9. vWith the parte inthe relative positions shown in thisfigure. the operator, while 'holding the hand wheel 130, starts themachine by an actuation of the latch lever 63. As the winding` shaftstarts to rotate, the rod 120 remains stationary and the lateralprojections 136 on the shaft are enga-ged in the recesses 140 in thehead of the rod behind the projections 1-i2. Upon the engagement of thelateral projections on the shaft with the end faces of the recesses,rotary movement is imparted to the rod 120 by the rotation of thewinding The rotation of the rod 120, while the sleeve 124- ris held fromrotation, will produce a relative longitudinal movement of the rod andthe Sleeve 121i in a direction to draw the head ot the rod toward theinner end ot the sleeve. During the relative lon- `aitudinal movement otthe Sleeve and rod the projeethme il! on the head ot therod are drawntirmlv ae'ainet the promotions 'lll on the winding fsha'tt, and theinner end ot' the ,sleeve is engaged 1with the clamping.;` member litsand 'torres the elampine; member lirmlv against the outer Side ot thebohhin. lllhenithe bobbin is; Securely clamped between the lange litiand the elanfipine' member litt the operator releases` the hand wheellltl. allonine' `the Sleeve lllf to rotate Yi'reelv in the arm ltltduring; the remainder ot" the winding` operation. ett the eonuliletionolE the .rii'izliuef o't a bobbin. the ,viiitlilrrrr aha'lt ia rotating'in the dirertion ot' the ar row. liiej. l. anll in nnelainping` thebobbin trom the bobbin winding); elrirlt, the operator, while the hattie Still running. grasos the hand wheel lill). therebvv arreetine' therotation ot the Sleeve lil- Through the Continued rotation ot the rodlil() a relative longitudinal movement ot the rod and sleeve will oeeurin a direction to projeet the head ot the rod 'troni the inner end otthe sleeve. illiel relative movement et the Sleeve and rod will relievethe elampingr member 119, from clampingl engagement with the outer eideot the bobbiufand n'ill relieve the pressure otf the projections l-laeainet the lateral proieetions 13G, allowing" the Winding ebaiittoiturn rehitivel;7 to the head 1:22 ot the rod into the positionslioivn in Fie'. t). ln removing' the bobbin 'from the Winding ehi'i'ttnthe rbd 120 moved longitudinail)v to the lett bv a long itiulinalmovement ot the Sleeve ll-` andV the sleeve, rod and clamping` devicesare then eating); into the positions shown in 'tall linee` in Fig. i tooeruiit the removal o'l the bobbin.

A The lforward movement ot the arm 126 ifs limited bv the enealeinent ota projection lill on` the arm with an adjustable abutment :ferew titl.This abutment aeree' adjueted so that when the arm 19d is swung' intopoeition to engage the nime@ tion lil-t with Said Soren', the Sleeve124i-, rod 120. and clampingl device 11S will be loeated arein'atelv inarial alignmentn'it-h the Winding shait. To hold the arm 126 either inthe position Shown in dotted lines in Fie: 'i'. or in the position Shownin toll linee` in raid ligure, the arm is engaged by the 'tree end oit aleat spring; l-tS seenred by a Screw lOto the trame. This spring` isarranged to engage a tlat 'tace 152 on the arm to hold the arm in theposition shown in dotted linee` in Fie'. T. and to engage a tlat 'tacell on the arm to hold the arm in the posiition shown in tull linee` insaid tigure. To hold the end of the thread in startingI the winding;rotl a bobbin, the end of the thread may be inserted between theclamping;r member 1i lei and thetlange-on thebobbin, and clamped betweensaid member and the bobbin when the bobbin ie clamped on the windingshaft.

lith the tiret part oit' the thread wound on the bobbin in one directionand the reni-.iinder ot' the thread wound in the opposite direction, inuuu'indinel the thread the inner end ol the thread or the end ot thepart ollv the thread Wound in the first direction ie liable to be pickedup by the unwinding thread be'tore the reverend in the direction of' thewinding is reached, and a part or all ol' the thread Wound in the tiretdirection will then be unwonnd Atrom the bobbin prematurelv. To preventthis dili'ienlty the inner end ol" the thread is wound in or Covered byseveral coils oit thread Wound in the tirst direction at the beginning`ol the winding; ot the thread on the bobbin. This result is produced byholdilli' the thread leading t'rom the Supply tothe bobbin eo that it isdelivered to the bobbin eloeeto one ot the end flanges on the bobbindnril'igj the Windingot several coils on the bobbin at the beg-inning otthe winding operation. The machine illustrated in the drawing' isprovided with a thread guide lever 156 pivoted at 158 on the 'traine andtermed with diverging project-ions 1GO and 1.62, the recess between`which torina a guide tor the tlnead. The movement ot' the thread guidelever about its pivot in one direction is limited by the engagement otthe rear end ot the lever with a stop pin lttl: and the lever is actedupon by a coiled spring: ltt which tende` to maintain the lever inengagement with the Stop pin. The position of the thread guide leverwhen engaged with the stop pin lill is euch that the thread, as; itpasses through the thread guiding.;` reeees het-Ween the projections;1GO and lt, is held eloee to the lett-hand flange ot the bobbin. 'l`hethread euide lever ie held in engagement with the Stop piu dui-hrer thewindingl ot Several turni; or eoils oi thread on the bobbin at thebeginnnrey oit the windingoperation. eo that the end ot the thread willbe Covered by Several coils ol thread wound in the tiret direetion.ilitter the end ot' the thread is covered b v a number ot eoile` thethread guide lever is actuated to Swing the forward end thereof to theright toward the rightdiand thingie on the bobbin so thatthe thread isdelivered to the bobbin nearer the central portion thereot'. To this,lend the rear end ot the thread guide lever ie arranged to be engaged bythe lett-hand end ot the sha-tt T8 as said shatt is moved longitudinallyto the lett during); the Winding` of the tiret part ot a bobbin. At theStart ot the winding` ot a bobbin when the shat't is located in itslimiting' position toward the right, the poeition of the thread guidelever which is then held in engage- Sli vwinding operation.

ment with the stop pin 164 by the spring 166 is such that the rear endof the lever is located at some distance from the end of the shaft 78.Thus the thread as it is delivered to the bobbin is held by the threadguide lever close to the left-hand fiange of the bobbin during thewinding of several coils of thread on the bobbin. After theJ windingshaft has executed a number of revolutions, the end of the shaft 78engages the rear end of the thread guide lever, and by the continuedlongitudinal movement of the shaft to the left, the thread guide leveris swung gradually in a direction to carr1 the forward end of the leverto the right, or toward the right-hand flange on the bobbin. As theshaft 78, following the reversal in the direction of rotation of thewinding shaft, moves longitudinally to the right, the thread guide leverunder the action of the coiled spring 166 will swing back toward itsoriginal or starting position.

Figs. 11 to 16 inclusive illustrate the manner in which the thread iswound on the bobbin, the length of thread wound in the first directionon the bobbin being indicated at T in said figures, and the remainder ofthe thread to that wound in the second direction, at T.

Figs. 1l and 12 of the drawings illustrate the manner in which thewinding of a bobbin is started with the thread held close to theleft-hand flange of the bobbin by the thread guide lever. As shown inthese figures, the thread at the beginning of the second turn or coil islaid across the end of the thread. it will not always happen that theend of the thread will be wound in by the second coil in this manner,but several coils may be wound on the bobbin before the thread end iscovered. Figs. 13 and 14 illustrate the bobbin just after the directionof the winding of the thread on the bobbin is reversed` and shows themanner in which the thread is wound close to the left-hand fiange of thebobbin during the first part of the Figs. 15 and 1G illustrate acompletely wound bobbin. and show the length of thread wound in thefirst direction on the bobbin covered by the thread wound in the seconddirection so that the latter thread is unwound first from the bobbin. ltis to be noted that the manner in which the inner end of the thread iswound in or covered by one or more coils of the thread wound in thefirst direction, will prevent the bobbin thread from being` threaded inthe sewing machine in which the bobbin is used so that the thread woundin the first direction is drawn first from the bobbin.

Although the prevent invention was particularly designed to be embodiedin machines Jfor winding sewing machine bobbius, certain features of theinvention may be applied with advantage to machines for winding otherforms of bobbins or thread carrier, and it is to be understood that theinvention is limited only to the class of machines defined in theclaims, and that it may be embodied in any form fairly within thc scopeof the claims.

Having explained the nature and object of the invention, and havingspecifically described a machine embodying the various features thereinin their preferred forms, what is claimed is:

1. i bobbin winding combination, a winding shaft, driving connectionsfor driving the shaft in reverse directions, a registering mechanism forregistering the revolutions of the winding shaft during the first partof the winding operation, and means controlled by the registeringmechanism for shifting the driving connections to cause a comparativelyshort predetermined length of thread to be wound on the bobbin in onedirection and the remainder of the thread to be wound on the bobbin inthe opposite direction.

2. A bobbin winding machine, having, in combination, a winding shaft,driving connections for driving the shaft in reverse directions,mechanism for actuating and controlling the driving connections to drivethe shaft in one direction during the winding of a relatively smallnumber of turns of thread on the bobbin and to drive the shaft in themachine having in opposite direction during the winding of` theremainder of the thread on the bobbin comprising a timing mechanismactuated in definite relation to the winding shaft, and means controlledfrom the timing mechanism for shifting the driving connections toreverse the direction of rotation of the winding shaft at apredetermined point in the winding operation.

3. A bobbin winding machine, having, in combination, a winding shaft,driving con-- nections for driving the winding shaft in reversedirections, a latch for maintaining the driving connections in conditionto drive he shaft in one direction, mechanism for automatically throwingout the latch after a comparatively short length of thread has beenwound on the bobbin, and means for shifting the driving connections uponthe release of the latch and for holding them shifted to drive the shaftin the reverse direction until the remainder of the thread has beenwoiind on the bobbin.

4t. A bobbin winding machine, havii g, in combination, a winding shaft,driving connections for driving the shaft in reverse directions, a latchfor maintaining the driving connect-ions in condition to drive the shaftin one direction, means for automatically releasing the latch, means forshifting` the driving` connections upon the release of the latch todrive the shaft in the reverse dircciion, :ind nicnns Alor shitting' thedriving conncctionsi to disconnect the sanne Jtroni the shzift.

"i hohhin Winding nnichine. having', in coinhinntion, n Winding` Shaft,driving' connectionS for driving the shzrit in reverse directions. nlatch ifor ninintnininn` the driving' conncctioin: ont oi operativereintion to the '.-fhni't :ind Ytor innintnining riid connections incon-,lition to drive the Shn'lt in one. direction. mennol for actuating;the driving` connections' to coi'inect the Finne with toey fihzilt todr'vc the shzift in one direction i '-on the iin'it reienre oit' thelotcln the hitch t en ogrerntingr to innintnin thc driving` connrc'ion.in operntive rclntion to the shnlt. ine: ne for nntoinnticnilvproducing' :i second rclcnric ot the hitch, inechanisnl 'for Shifting;l'the driving' connections upon the second reieinie or the hitch to drivethe ehn't't in the reverre directionl :ind nienns 'tor shittino; thedriving' connections to dieconnect the suine 'troni the shnt.

o. di hohhin winding' nnn'hine. hzivinn'. in ronihinntion, n Windingvnhnt, driving` eonncctions 'lfor driving' the shaft in revereedirections. n registering inechnnisin 'lor regie tering the revolutionsof the Winding; Slinift dnrinn` the. tiret pnrt ot the `ivindingoperotion conlpririne; n Second sshnt't, :i not in 'which mid Sli-nitif' threinled` ineons roi' relntively tnrninn' the second Shni't :indthe nnt in dn'inite relation to the winding Sli-(ift, ond nicnns`controlled h v the relntive longiindinnl niovcincnt ot' the .Secondshnit und the not in one direction only 'tor shiitinglg the driving`eoiniections to reverSe the direction ot' rotntion oi the winding'shnit.

7. A ho'hbin winding nniehine. hzivinb, coinhinntion, :i Winding Sho igdriving` connections Jfor driving' the Shn'lit in reverse directions. nintch :for holding' the driving' coninetionr` ont o il operativerelation to the winding' Shnil :1nd for holdingy the driving'connectione in condition to drive the shaft in one direction. und ninnriior controllingy the hitch.

kSi. nlV hohhin vvindii'ig' nnichinc. having, in condiiinition, nwinding` sliniit, driving' connectionn.` Yfor driving' the shzrlt inreverse di rectionsi n lotcli for holding the driving connections ontoit oiwrntive relation to the winding' rinvii' and for holding' thedrivingV connectimis in condition to drive .the siinift in onedirectioin ninnnnliv-controlied inenns ior throwing' ont the lntch tostort the nur chine. :ind nnlonniticnllv-nctiiny menno to throw ont thehitch to conse the Shi'ltii'ie' ot the driving' connectionsy to reversethe direction of' rotntion o if the Winding short.

Si. fr hohhin Winding' innchine, having'` in coinliinniion. n Winding'shnlii. n thread ,finden inenns Afor relntivclv holding` the hobliin:ind thread guide stationary in position to guide the thread cloe to oneinnige oi' the o' in hohhin during' the winciini of one or niore coihvon the hohliin :itthc heninningi' oi" the n'iiidingf; operntion. :nldinenin: Por reintivelv shitting; the thrend ,amide nnd hohhin.

l0. A, bohhin winding); nnichine, having, in combination, n Windingshnitn driving connections for driving; thc slnitt, in reversedireetionn, nienns Y[or nctlnitino' :ind controlliner the drivingyconnectiomi during the vindin nhniit in one direction diningl theWindinggl olf :i portion oi the thrend on the holihin nnd to drive thenhnlt, in, the reverse direction dnrine; the winding' oi the remainderoi.z the thread on the liohhin, :i tln'end ,e'nideyq und menne `Forrelatively; holding; the hohhin :ind thrend `:,nide in poniion to nitidethe thread close to one thingie ot' the hohhin during` the winding` oione or niore coils on the hohhin :it the heginningi of the windingoperntion i :1nd 'lor rclntivelv ohiitingg' thethrend guide :and hohhin.

ll. A nohhin winding nmchinn having. in coinhinntion, zi winding' Shaft,driving' con` ncctioni-a vfor driving' the Wii'iding slnrlt in reverfedirections. nnd menno :ictini :intonniticnliy during; the windingoperation to si i'ft the d rivinn` cf'innoctions to enlise nconipnrntively short predetermined length of lihi'end to he wound on theholihin in one direction :it the heginningg; of the winding operntionund the reinninder ol the tln'end to he 'wound on the hohhin in theopposite direc-tion.

l2. A hohhin Winding;` ninehine having, in conlhinntion, '.1 Winding.;`ehnftft, driving` connections 'tor driving' the vinding shaft in reversedir etions, inenns noting :intonintifolly during the winding' ope 'ntionto shift the driving Connections to canse :i compu fntively Shortpredeerniined length of thread to be Wound on the hohhin in onedirection :it the beginning ot' the Winding operation ond the renniinderol? the tln'end to he wound on the bohhin in the opposite direction,:ind nienne 'lor verving*y the linie in the winding); operation nt whichnnid Shiift occurs.

i3. A liobhin Winding' lnnchine having', in conihinntion. n winding);Ldurft, driving,l connections lor drivingl the winding` 'shzrft inreverse directions, und inenns meting); nutoinnti'nily during thowinding; ope 'ation to shift the driving1 connections` to conse nconipnrntively |short predetermined iengt-li oi thrnd to he wonnd on thehohbin in one direction nt the heginniiny; of the nf'inding ope 'ationnnd the remainder oi the thread to `ne wound on the hohliin in theopposite di- ,i'ectioin sind nie-uns comprising n timing niechziniginoperatively nctnnted during' the rotntion o'l the .vindinp; slnriit inone direction :ind rezet during' the rotntion oi the. winding' shaft; inthe opposite direction.

li. it hohliin Winding ninhine having,

in combination, n winding Shaft, und menne operntion to drive the'winding Sil) Hifi

rin

'for actuating said Shaft acting automatically to Wind a comparativelyvshort predeten mined length of thread on the bobhin in one direction atthe beginning ot' the Winding operation and the remainder of the threadon the hnhlrn the opposite direction.

15. A hohhin Winding machine having, in combination. a winding shaft,driving connections for driving the Winding shaft in reverse directions,and means acting automatically to throw out the connections for drivingthe shat't in one direction When a comparatively short predeterminedlength of thread has heen Wound on the hobhin at the beginning of thewinding operation.

16. A bohbin Winding machine having, in combination, a Winding shaft,means for clamping a flanged sewing machine hohbin thereon, and meansfor rotating the shat't to Wind a comparatively short predeterminedlength of thread on the hobhin in one direction and the remainder of thethread on the bobbin in the opposite direction.

LAURENCE E. TOPHAM.

